@book{WilhelmHummelbrunnerCausemannetal.2015,
  author    = {Jan Lorenz Wilhelm and Richard Hummelbrunner and Bernward Causemann and Theo Mutter and Michaela Raab and Anja Bugenhagen and Hendrik Smid},
  title     = {Evaluation komplexer Systeme},
  series    = {Systemische Evaluationsans{\"a}tze in der deutschen Entwicklungszusammenarbeit},
  editor    = {Jan Lorenz Wilhelm},
  isbn      = {978-3-86956-336-7},
  year      = {2015},
}